Improvement in steam-generators



Steam-Generators.

Patented Jan. 28,1873.

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THOPHILE HARANG, OF BANANA GROVE PLANTATION, PARISH OF LA FOUROHE, LOUISIANA.

IMPROVEMENT IN STEAM-GENERATORS.

Specification forming part of Letters Patent No. 135,219, dated January 28, 1873.v

Toall whom it may concern:

Beit known that I, THEOPEILE HARANG., of Banana Grove Plantation, parish La Fourche, State 0f Louisiana, have invented certain Improvements in Steam-Boilers, of which the following is a specification:

` The object of my invention is to construct and provide for an improved steam-boiler or steam-generator, which is easily constructed, and will generate steam very rapidly and economically, having a superior heating-surface so arranged that the heat will be most effective and the water circulate Very rapidly. All impurities contained in the water will lodge in the rear ofthe boiler, where it is less in danger from burning out or injuring the plates.

In order to describe my invention more fully, I will refer to the accompanying` drawing forming a part of this specification.

Fi gureIis a longitudinal cut section through line y y, Fig. II. Fig. II is a horizontal cut section through line :v a, Fig. I. Fig.A III is a ilan cut sectional view through line :o Fig.

A and B are two metallic cones, which are connected to the cylinder G by the two parallel metallic walls D, E, F, and G, which are thoroughly stayed by stay-bolts a a, which prevent the pressure from separating them. The front and back ends of the cones, walls,

- and cylinder are closed. This boiler so constructed forms a saddle, which is placed on the brick walls b b', between which the firebars c c are laid; d forming the ashpit; e, the

furnace; f, the lire-bridge; and g, a brick lilling. The saddle-boiler and the brick walls b the smoke and products of combustion'. This oven H H is closed in the front and end, and serves also, where the arches lie against the cylinder C, to support and steady the saddleboiler in its position.

TheV dame and heated products of combustion strike iirst the inside of the cones A B, thewalls D E, and the bottom of the cylin der C, from where it is conducted around the back end of the cone A and into the chamber h, between the outside of the cone A, wall F, and outer side of the cylinder O and brick wall b' and wall H; from this downward into the fluejz', from where it ascends up into the flue j, formed between the wall H, wall b, outside of the cone B, wall G, and outer side ofthe cylinder C and from this escapes through the chimney J into the atmosphere. K is a pipe for removing impurities settled in the rear of the cones A and B. L is a steam-pipe for conducting the steam from the boiler. M is a brick wall between the cone B and the back end of the oven H H, which causes the llame and heated products to take the course described. The water-level in the boiler is kept up to the dotted lines s s,.the upper part 

